I do not think that the air filter had anything to do with this particular problem.
I remember trying several times to start it without the air filter on, so cleaning the air filter did not fix this problem.
There was apparently a "foreign object" of some size and shape that was in a place that it should not have been.
Wish I knew.
Maybe I am going to have to invest in an air compressor.
Me too, just to know what happened.
Just like that 371 that would pop and not start. That was a weird one too.